Thanks for replies so far, does 15 ohm resistance sound way out for such a large area? I have no specs to go on as this was fitted in 2006 albeit to a modern extension.
Dear All, moved into an old house last year and one room is heated by electric Ufh which doesn’t work, it’s a large room about 25sq m and uses a devireg 550 wired through a contactor I assume due to the large load? I have tested the heating cable (we have some paperwork to suggest it is devi...